Locking and opening device for extension-tables.



H. M. HANSON. LOUK ING AND OPENING DEVICE FOE EXTENSION TABLES.

APPLICATION FILED JAILZS, 1911.

Patented NOV. 28, 1911.

n VITN 5555 [N VENT OR I ny-wil Atlm'm UNITED sTATEs PATENT orr es-HENRY unhnson, or mivnsvnnn, WISCONSIN, ASSIGNOR 'rd ii 'zin'son"'IvCOMPANY, or JANESVILLE, wIscoNsIN.-'

LOCKING A111) OPENING DEVICE FOR nxrnusroiv rmatns To all whom itmag/concerns Be it known that I, IIENRY, M. ltLussom new and usefulImprovements in Locking and Opening Devices for Extension-Tables;

and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it apper'tains to make and use the same.

This invention relates to improvements in tables and more particularlyto locking means for the members of an extension table,-the object ofthe invention being to provide simple devices whereby the two members ofan extension table can be drawn closely together and locked and to soconstruct the de ices that, when operated to release the table members,they will also cause the forcible separation of one member from theother, thus obviating the inconvenience heretofore encountered with thesticking of dowel pins projecting from one table member and enteringsockets in the other.

'With this object in view the invention consists in certain novelfeatures of construction and combinations of parts as herein after setforth and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view-of a portion of a tabletop showing the application of my improvements with the two members ofthe table top locked together, and Fig. 2 is-a similar view showing theposit-ions of the parts after the table top members have been unlockedand sepa rated. I

1, 2, represent the two members of the top of an extension table, themember 1 being provided at its ends with dowel pins 3 to enter suitablesockets inthe adjacent end of the member 2.

A bracket 4 is-secured to and depends from the member 1 some distanceremoved from the inner end thereof and to this bracket, a lever 5ispivotally attached and formed at its free end into a. handle 6. An-

other bracket 7 is secured to the member 1 of-the table top at a pointbetween the bracket 4 and the inner edge of said member 1, preferably ashort distance from said inner edge. A locking bar 8 is pivotallyattached at one end to the lever 5 and. is of sufiicient length toproject beyond the inner Specification ofLetters-Patent. Pateflte'd No"Application filed January 25, 1911. Serial No. 604,69

7 table member 2 near j I z. 1;); v i, d {53, edge of thetable neabglgsailplbddng bar bein provided; Efreegeird vy ith a notch Forming ahotel if; pending lip 10 of, a l. segure d,tg,t ie

.li le f g $0., t -2 Thelocking bar 8 'is 'pro'vided b etii der idtsends with a diagonal slot 12 and a pin 13 supported by'the bracket 7passes trans versely through this slot 12. The keeper 11 above referredto is provided at its end opposite the lip 10 with a depending arm ormember 14 to beengaged by the free end of the locking bar 8 as presentlyexplained.

When the table members I2 are separated and the lodging devices are inthe positions shown in Fig. 2, the operation of the lever 5 to the leftwill cause the lockingbar to move upwardly (by. reason of the slot 12and pin 13) until its hook 9 shall aline with the lip 10 ofthe keeperand the further movement, of said lever 5 in the same direction willcause the two table top members to be drawn together. The pivotalconnection of the lever 5 with the bracket 4 and the pivotal connectionof the bar 8 with the lever 5 will now be in valinement as shown in Fig.1 and the table top members will be securely locked together. Should itnow be desired to unlock and separate the table top members 1 2, theoperator will move the 35 free end of the lever 5 downwardly. During thefirst portionlof this movement the bar 8 will be moved longitudinally soas to engage the depending member 14 on thetable top member 2andforcibly separate the latter from the table top member 1. -As the bar8 continues to move forwardly by the depression of the lever 5, said bar8 will be caused to move downwardly (by reason of the slot'12 and pin13) and the hoop ,9 of said bar to move away from the lip 10' of thekeeper and thus the two table top members will be unlocked and separatedas shown attached to the first mentioned member and to said bar, meanscooperating with said 1 bar to move it toward or away from the table topmembers when it is moved longi-' 9' tudinallyfanda device on one of saidtable top members in position'to be engaged by said locking barlfw'vhenthelatter 1s moved longitudinallyfrom locked position to forciblyseparate said'table top members 2. The combination with two relativelymovable tabletop" members, of two brackets depending from one of saidmembers, a lever pivoted to'one' of said brackets, a locking ar pivotedtosaid lever and extending past the T other bracket and having a dialonal slot, a pin supported by the last mentloned bracket and. passingthroughthe diagonal slot of the locking bar, a keeper secured to theother table top member tocooperate with latter lsmoved to unlock thetable top members, for forcibly separating one table top member from theother. r

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

v HENRY M. HANSON, Witnesses:

A. J. Gnmons, EMMA GrLBEn'rsoN.

